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Merge pull request #6773 from taosdata/hotfix/TD-5045 

[TD-5045]fix nchar filter issue
This commit is contained in:
Haojun Liao 2021-07-08 16:09:47 +08:00 committed by GitHub
parent 20ed0ad772 7f25afc831
commit 5be8dc403f
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 37 additions and 0 deletions
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36
src/client/src/tscUtil.c
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@ -748,6 +748,37 @@ typedef struct SJoinOperatorInfo {
SRspResultInfo resultInfo; // todo refactor, add this info for each operator
} SJoinOperatorInfo;
static void converNcharFilterColumn(SSingleColumnFilterInfo* pFilterInfo, int32_t numOfFilterCols, int32_t rows, bool *gotNchar) {
for (int32_t i = 0; i < numOfFilterCols; ++i) {
if (pFilterInfo[i].info.type == TSDB_DATA_TYPE_NCHAR) {
pFilterInfo[i].pData2 = pFilterInfo[i].pData;
pFilterInfo[i].pData = malloc(rows * pFilterInfo[i].info.bytes);
int32_t bufSize = pFilterInfo[i].info.bytes - VARSTR_HEADER_SIZE;
for (int32_t j = 0; j < rows; ++j) {
char* dst = (char *)pFilterInfo[i].pData + j * pFilterInfo[i].info.bytes;
char* src = (char *)pFilterInfo[i].pData2 + j * pFilterInfo[i].info.bytes;
int32_t len = 0;
taosMbsToUcs4(varDataVal(src), varDataLen(src), varDataVal(dst), bufSize, &len);
varDataLen(dst) = len;
}
*gotNchar = true;
}
}
}
static void freeNcharFilterColumn(SSingleColumnFilterInfo* pFilterInfo, int32_t numOfFilterCols) {
for (int32_t i = 0; i < numOfFilterCols; ++i) {
if (pFilterInfo[i].info.type == TSDB_DATA_TYPE_NCHAR) {
if (pFilterInfo[i].pData2) {
tfree(pFilterInfo[i].pData);
pFilterInfo[i].pData = pFilterInfo[i].pData2;
pFilterInfo[i].pData2 = NULL;
}
}
}
}
static void doSetupSDataBlock(SSqlRes* pRes, SSDataBlock* pBlock, SSingleColumnFilterInfo* pFilterInfo, int32_t numOfFilterCols) {
int32_t offset = 0;
char* pData = pRes->data;
@ -766,8 +797,13 @@ static void doSetupSDataBlock(SSqlRes* pRes, SSDataBlock* pBlock, SSingleColumnF
// filter data if needed
if (numOfFilterCols > 0) {
doSetFilterColumnInfo(pFilterInfo, numOfFilterCols, pBlock);
bool gotNchar = false;
converNcharFilterColumn(pFilterInfo, numOfFilterCols, pBlock->info.rows, &gotNchar);
int8_t* p = calloc(pBlock->info.rows, sizeof(int8_t));
bool all = doFilterDataBlock(pFilterInfo, numOfFilterCols, pBlock->info.rows, p);
if (gotNchar) {
freeNcharFilterColumn(pFilterInfo, numOfFilterCols);
}
if (!all) {
doCompactSDataBlock(pBlock, pBlock->info.rows, p);
}

1
src/query/inc/qExecutor.h
View File

@ -118,6 +118,7 @@ typedef struct SColumnFilterElem {
typedef struct SSingleColumnFilterInfo {
void* pData;
void* pData2; //used for nchar column
int32_t numOfFilters;
SColumnInfo info;
SColumnFilterElem* pFilters;